Int J Sports Med 2017; 38(13): 1009-1016
DOI: 10.1055/s-0043-118342
Training & Testing
© Georg Thieme Verlag KG Stuttgart · New York

Time Course Change in Muscle Swelling: High-Intensity vs. Blood Flow Restriction Exercise

Eduardo D.S. Freitas
1  Health & Exercise Science, University of Oklahoma, Norman, United States
,
Christopher Poole
2  Department of Health and Exercise Science, University of Oklahoma, Norman, United States
,
Ryan M. Miller
1  Health & Exercise Science, University of Oklahoma, Norman, United States
,
Aaron David Heishman
1  Health & Exercise Science, University of Oklahoma, Norman, United States
,
Japneet Kaur
1  Health & Exercise Science, University of Oklahoma, Norman, United States
,
Debra A. Bemben
3  Department of Health and Exercise Science, University of Oklahoma Norman, Norman, United States
,
Michael Bemben
1  Health & Exercise Science, University of Oklahoma, Norman, United States
› Author Affiliations
Further Information

Publication History



accepted after revision 02 August 2017

Publication Date:
01 October 2017 (online)

Abstract

This study determined the time course for changes in muscle swelling and plasma volume following high (HI) and low-intensity resistance exercise with blood-flow restriction (LI-BFR). Ten male participants (22.1±3.0 yrs) completed three experimental conditions: high-intensity exercise (HI - 80% of 1RM), low-intensity exercise with BFR (LI-BFR –20% of 1RM, and 160 mmHg of BFR), and control (CON – no exercise or BFR). Muscle cross-sectional area (mCSA), muscle thickness, thigh circumference, and percentage change in plasma volume (PV%∆) were measured. mCSA was significantly greater than rest values at 15 min post-exercise (p<0.01) for HI and LI-BFR, and at 75 min post-exercise (p<0.01) for HI. Muscle thickness was significantly greater than rest immediately post-exercise (p<0.01) and 30 min post-exercise (p<0.01) for HI and LI-BFR, and at 60 min post-exercise for HI (p=0.01). Muscle thickness was greater for BFR immediately post-exercise compared to HI (p=0.01) post-exercise. Thigh circumference was significantly greater from rest at 15 min post-exercise (p=0.01) and at 75 min post-exercise for both LI-BFR (p=0.03) and HI (p<0.01). PV%∆ significantly decreased from rest immediately post-exercise for both HI (p<0.01) and LI-BFR (p<0.01). In conclusion, BFR exercise induces changes in muscle swelling and plasma volume similar to those observed at high-intensities.